NSN 2540-01-689-8098 — this item is cataloged by the U.S. Government under National Stock Number 2540-01-689-8098. Manufacturer of record part number: 3991959C2.
Also searched as2540-01-689-8098 ·
2540016898098 ·
NIIN 016898098 ·
01-689-8098 ·
FSC 2540 Vehicular Furniture and Accessories · CAGE 338X5 · 3991959C2
The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 2540-01-689-8098, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Nd Defense Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
2540-01-689-8098
Primary Part Number
3991959C2
Item Name
Duct Assembly,air Conditioning-H
FSC / FSG
2540 / 25 — Vehicular Furniture and Accessories
Manufacturer
Nd Defense Llc
Status
ACTIVE
Mounting Hole Quantity
10
Shape
HORIZONTAL RECTANGULAR
Vehicle Identification Designator
MI235A5
Vehicle Design Control Activity
338X5
Color
WHITE
Surface Treatment
PAINTED
Material
STEEL AND ALUMINUM
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 2540 — Vehicular Furniture and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2540-00-001-2045
2540-00-001-2045 · Item name not on file
2540-00-001-3392
2540-00-001-3392 · Item name not on file
2540-00-001-3467
2540-00-001-3467 · Item name not on file
2540-00-001-3534
2540-00-001-3534 · Item name not on file
2540-00-001-3535
2540-00-001-3535 · Item name not on file
2540-00-001-3536
2540-00-001-3536 · Item name not on file
2540-00-001-3537
BRACKET,HEADLIGHT,MOUNTING
2540-00-001-3538
BRACKET,HEADLIGHT,MOUNTING
Frequently Asked Questions
What is NSN 2540-01-689-8098?
NSN 2540-01-689-8098 is a Duct Assembly,air Conditioning-H, manufactured by Nd Defense Llc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
What part numbers are listed for NSN 2540-01-689-8098?
NSN 2540-01-689-8098 has 1 manufacturer part number on file: 3991959C2 (Nd Defense Llc).
What are the specifications of 3991959C2?
Key specifications for 3991959C2: Mounting Hole Quantity: 10; Overall Height: 115.0 MILLIMETERS NOMINAL MM; Shape: HORIZONTAL RECTANGULAR; Overall Length: 895.0 MILLIMETERS NOMINAL MM. 7 specifications are documented in the U.S. Government catalog.
Is NSN 2540-01-689-8098 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.